Brick-kiln.



Patented Dec. l8, I900.

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No. 664,|36. H. C. DUNN.

BRICK KILN.

(Application filed Aug. 11, 1900.)

(No Model.)

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Patented Dec. l8 I900. H. c. DUNN.

BRICK KILN.

(Application filed Aug. 11, 1900.

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(NoModelJ Pa tented Dec. la, I900. H. ninulm. a BRICK KILN.

(Application filed Aug. 1'1, 1900. r

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(No Model.)

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NITED STATES PATENT OFFICE.

HENRY G. DUNN, OF ERIE, PENNSYLVANIA.

'BRICK-KILN.

SPECIFICATION forming part of Letters Patent N 0. 664,136, dated December 18, 1900.

Application filed August 11, 1900. barial No. 26,585. (No model.)

To all whom it may concern:

Be it known that I, HENRY O. DUNN, a citizen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented certain new and useful Improvements in Brick-Kilns; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, forming part of this specification.

My invention relates to improvements in brick-kilns, and particularly to that type thereof which embodies substantially a series of adjacent independent chambers capable of being operated serially, so that while brick are being burned in some of the chambers other chambers are being cooled and the burned brick removed therefrom and still other chambers are being filled with brick preparatory to their being burned.

The invention consists, substantially, in the arrangement of the chambers and the chimney relatively thereto and in the construction and arrangement of draft-flues leading from the ends of said chambers into the chimney, together with other details of the construction and of the arrangement of the parts thereof, whereby the different chambers of the kiln can be successively filled and operated without in any wise interfering with or impeding the operation or non-operation of other chambers of the kiln. In other words, the parts of the kiln are so constructed and arranged that it operates as a continuous kiln, all of which features are hereinafter fully set forth in the accompanying drawings, in which Figure 1 is an end view in elevation of my improved brick-kiln. Fig. 2 is a side view of the kiln, partially in elevation and partially in section, on the line u u in Fig. 1 looking in the direction of the arrow. Fig. 3 is a vertical longitudinal section of the kiln on the line '1) o in Figs. 1, 4, 6, and 7 looking in the direction of the arrows. Fig. 4c is a transverse vertical section of the kiln on the linesw win Figs. 3, 5, 6, and 7 looking in the direction of the arrows. Fig. 5 is a vertical longitudinal section of the kiln on the lines a; a: in Figs. 1,

4, 6, and 7 looking in the direction of the arrows. Fig. 6 is a horizontal section of the kiln on the lines y y in Figs. 1, 2,- and 3 looking in the direction of the arrows. Fig. 7 is a top or plan view of the kiln, with portions broken away, showing the arrangement of thegitudinal draft-fines B B and B, (see Fig. 1,) which are normally closed by some convenient closures b and only opened when it is necessary to clean the lines B B and B. The side Walls D of the kiln are provided with an arched opening 0, (see Fig. 2,) communicating with each chamber E of the kiln. After a chamber is filled the opening 0 is closed up during the burning of the brick by walling it up with brick and plastering it over with mud or in any other convenient manner. The ends of the transverse draft-fines F and F also open through the side walls D of the kiln, but are normally closed by some convenient closuref and are only opened when it is necessary to clean the fines F and F.

The kiln shown in the drawings consists of a series of twenty-two independent adjacent chambers E, separated from each other by a longitudinal vertical wall E and by transverse walls E and are numbered from 1 to 22, inclusive, each of which is provided with one of the openings C, hereinbefore described, and with vertical fines e at the outer ends thereof communicating with the side draft-fines B and like flues c at the inner ends thereof communicating with the central draft-flue B, the side draft-fines B being connected with the centraldraft-fiues B by means of transverse draft-lines F and F, as clearly shown in Fig. 7. Through the bottom of each of the transverse walls E there is a series of draft-openings 6 so that there is communication between the chambers E therethrough to supply air to said chambers, and through the bottom of each end of the longitudinal wall E there is a draft-opening a through which commu nication is bad between the chambers E Nos. 1 and 22 and between chambers E Nos. 11 and 12, so that air may be supplied therethrough.

In the center of the kiln there is a chimney G, into which the draft-fines B B, &c., discharge, as shown in Fig. 7. These fines B B, &c., are controlled by cnt-elf dampers H, (see Figs. 2, 3, and 7,) whereby parts of the said fines may be cut oif from communication with the chimney Gwhen desired. The tops of the vertical fines 8', opening into the horizontal draft-fines B B and B, are provided with shut-off dampers I, provided with handles I, asillustrated in Figs. 2, 3, and 8, whereby any of the chambers E may be cut 0% from communication with the draftflues I3 B, as desired. In the top of each of the chambers E there is a series of openings J (shown only in two chambers, see Figs. 7 and 8) for introducing fuel into the chambers E, which openings are provided with covers J, as clearly shown in the sectional view of one of the chambers E in Fig. 8. Along the center of the top of each chamber E there are also holes K, provided with covers 70, for inspecting the brick while being burned and determining when the burning is completed. (See Figs. 7 and 8.)

In operation the brick to be burned are placed in one or more of the chambers Efor example, Nos. 1, 2, &c.and the front openings C thereto closed. They are then fired and fuel supplied from time to time thereto through the openings 1 in the top of each chamber, air being supplied to support combustion through the openings e in'the transverse division-walls E while the products of combustion pass through the fines e e and the draft-fines B B, &c., to the chimney G. Meanwhile other adjacent chambers Efor example, Nos. 4, 5, &c.-are filled with brick and in a like manner fired, and as the firstnamed chambers have by this time been sufficiently burned they are shut 01f and are allowed to cool, while at the same time other chambers E are being filled with brick and fired. This operation is continued, so that after the kiln is in full operation by utilizing the system of fines and dampers heretofore described I am enabled to utilize the heat from "chambers being cooled to start the burning of the chambers newly filled, and in this manner can utilize the heat so as to greatly economize in the use of fuel and keep a portion of the chambers constantly in operation while the other portions are being cooled and the burned brick removed and the chambers refilled, so that the kiln is continuously operating.

Having thus described my invention, so as to enable others to construct and operate the same, what I claim as new, and desire to secure by Letters Patent of the United States, is

1. The combination in a brick-kiln of permanent side and central longitudinal walls, a series of permanent transverse walls extending from the side walls to the central wall forming the ends of the kiln and also dividing it into a series of chambers, arched chamber-roofs extending between said side and central walls, draft-fines through said transverse walls from one chamber to another, a chimney located centrally in said kiln, a longitudinal horizontal fine in the npper part of the central longitudinal wall, communicating with the chimney and with the inner end of each chamber by means of vertical fines in the central wall, a longitudinal horizontal fine in the upper part of each of the side walls of the kiln, communicating with the outer ends of said chambers by means of Vertical fines in the side walls, transverse horizontal fines connecting the side fines with the central fine, dampers for cutting oif the vertical fines from the horizontal fines, and dampers for cutting off portions of the central and side fines, substantially as and for the purpose set forth.

2. In a brick-kiln the combination of permanent side and end walls, a central longitudinal wall, and permanent transverse Walls therefrom to the side Walls so as to form two rows of adjacent chambers having their rear ends separated by said central longitudinal wall, a series of draft-passages through the lower portions of each of said transverse walls, and a draft-passage through said longitudinal wall near each end thereof, a chimney located centrally in the said kiln, a longitudinal flue in the upper portion of each of the side walls of the kiln, a longitudinal fine in the upper portion of the central longitudinal wall and extending into the chimney, a transverse fine at each side of the chimney connecting the side fines with the central flue, vertical fines connecting the ends of said chambers with said central and side fines, dampers for shutting ofi the vertical fines, and dampers for cutting off portions of said horizontal fines, substantially as and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY O. DUNN.

Witnesses:

BERRY A. STURGEON, H. J. CURTZE. 

